Questar™ Polyester Film Specifications

Questar pet film rollsQuestar™polyester film (polyethylene terephthlate) retains good physical properties over a wide temperature range (-70 C to 150 C). It also is used at temperatures from -250 C to 200 C when the physical requirements are not as demanding.

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Typical Physical and Thermal Properties

Property Typical Value Unit Test Method
Gauge & Type End Use CI-100/92 Gauge Industrial Specialties ------------------- -------------------
Ultimate Tensile Strength, MD
TD
28,000
34,000
psi
psi
ASTM D 882
ASTM D 882
Strength at 5%
Elongation MD
(F-5), TD
15,000
14,000
psi
psi
ASTM D 882
ASTM D 882 
Modulus, MD
TD
710,000
740,000
psi
psi
ASTM D 882
ASTM D 882
Elongation, MD
TD
110
90
%
%
ASTM D 882
ASTM D 882
Surface Roughness 38 nm Optical Profilometer
Density 1.390 g/cc ASTM D 1505
Viscosity 0.56 dL/g ASTM D 4603
Melt Point 254 C Differential Scanning Calorimeter
Dimensional Stability
at 105 C MD
TD
at 150 C MD
TD

  0.6
0.3

1.8
1.0


%
%
%
%

Lab
Lab
Lab
Lab
Specific Heat 0.28 cal/g/ C --------------------
Coefficients of
Thermal Expansion
Thermal Conductivity
(Questar 1000 Gauge)
1.7 x 1010-5
3.7 x 1010-4
in/in/ C
cal.cm
cm2/sec/ C
ASTM D 696
30 C-50 C
25 C-75 C
UL 94 Flame Class 94 VTM-2 Slow to self-extinguishing --------------------
The information contained here in is given by Filmquest free of charge. It is upon technical data that Filmquest believes to be reliable and is intended for use by persons having knowledge of this technical area at their own discretion and risk. Filmquest assumes no responsibility for results obtained or damages incurred from the use of this information either in whole or in part by a buyer of Questar™polyester film.

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Typical Electrical Properties

Property Typical Value Unit Test Method
Dielectric Strength
AC, 25 C, 92 gauge
7,000 volts/mil ASTM D149-64
Dielectric Constant 25 C, 1 kHz 3.2 ------ ASTM D150-81
Dissipation Factor 25 C, 1 kHz 0.005 ------ ASTM D150-65
Volume Resistivity 25 C,1 kHz 1018 ohm-cm ASTM D250-78
Surface Resistivity 23 C, 30%
Relative Humidity
1016 ohm/square ASTM D257-78
Corona Threshold
Voltage, 92 gauge
425 V-AC ASTM D2275-80

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Yields for Questar™ Polyester Film

Gauge ft 2/lb in. 2/lb lb/ft 2 lb/thousand in. 2
30 437.5 63,000 0.00228 0.015
48 287.1 41,333 0.00348 0.0242
57 241.8 34,807 0.00414 0.0287
75 183.7 26,453 0.00544 0.0378
92 149.8 21,565 0.00668 0.0464
142 97.0 13,972 0.01030 0.0716
200 68.9 9,920 0.01451 0.1008
265 52.0 7,487 0.01923 0.1336
275 50.1 7,215 0.01966 0.1386
300 45.9 6,613 0.02177 0.1512
375 36.7 5,291 0.02721 0.1890
390 35.3 5,087 0.02830 0.1966
400 34.5 4,960 0.02903 0.2016
423 32.6 4,960 0.03070 0.2132
460 30.0 4,313 0.03338 0.2319
470 29.3 4,221 0.03411 0.2369
500 27.6 3,968 0.03628 0.2520
650 21.2 3,052 0.04717 0.3276
692 19.9 2,867 0.05022 0.3488
700 19.7 2,834 0.05080 0.3528
750 18.4 2,645 0.05443 0.3780
800 17.2 2,480 0.05806 0.4032
850 16.2 2,334 0.06168 0.4284
900 15.3 2,204 0.06531 0.4536
950 14.5 2,088 0.06894 0.4788
1000 13.8 1,984 0.07257 0.5040
1100 12.5 1,804 0.07983 0.5544
1200 11.5 1,653 0.08708 0.6048
1300 10.6 1,526 0.09434 0.6552
1400 9.8 1,417 0.10160 0.7056
1500 9.2 1,323 0.10885 0.7650

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Questar™ Polyester Film Roll Lengths (ft)

Gauge Single

(1x)

Double

(2x)

Quad

(4x)

Master1

(6x)

Jumbo2

(8x)

30 15,000 31,500 63,000 90,000 120,000
48 10,000 20,000 41,000 60,000 80,000
60 8,000 16,000 33,000 48,000 65,000
92 5,000 10,000 21,000 30,000 40,000
142 3,500 7,000 14,000 21,000 25,000
200 2,500 5,000 10,000 15,000 20,000
300 1,700 3,500 7,000 10,500 14,000
400 1,250 2,500 5,000 7,500 10,000
500 1,000 2,000 4,000 6,000 8,000
700 750 1,500 3,000 4,500 6,000
750 650 1,300 2,700 4,000 5,400
1000 500 1,000 2,000 3,000 4,000
1400 350 700 1,400 2,100 3,000

1 Custom lengths available

2 Select availability

Questar™ Polyester Film Roll Configurations

Length lbs. per inch of width 3" Core 6" Core 3 10" Core 3
Single 3.1 9-1/2" O.D. 11" O.D. N/A
Double 6.1 13" O.D. 14" O.D. N/A
Quad 12.3 17" O.D. 18-1/2" O.D. 20-1/2" O.D.
Master 18.1 N/A 22-1/2" O.D. 24" O.D.
Jumbo 24.5 N/A 25-1/2" O.D. 27" O.D.

3 Extended cores available by request

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Filmquest Group Inc.